[Feature Request]: Ability to Selectively Hide Functions

[lexi-the-cute]

Looking at the defines section, I see I can convert cfgs to defines, but what I'd like to be able to do is just to mimic /// cbindgen:ignore depending on the cfg.

For example, in my lib.rs I have:

#[no_mangle]
#[cfg(not(target_os="android"))]
pub extern fn ce_start(argc: c_int, argv: *const *const c_char) -> c_int {
    game::setup_logger();
    debug!("Launched as library...");
    
    // This is to convert from C Main Args to Rust Main Args
    let _argc: isize = argc.try_into().unwrap();
    let _argv: *const *const u8 = argv as *const *const u8;

    return game::launch(_argc, _argv).try_into().unwrap();
}

The cfg, #[cfg(not(target_os="android"))], prevents it from being exported on Android because I have no idea what will happen when one tries to run the engine without passing the AndroidApp var that is passed in from GameActivity. I pass it to winit, starting from a separate function called android_main. This is used to load the engine as opposed to ce_start which is used for launching as a native library. The point is, I don't want ce_start to show up in my bindings when I compile for Android.

I give a copy of the bindings file for each platform I build and different functions are available depending on what the platform is.